Question

A metal bar weighs 8.15 ounces. 93% of the bar is silver. How many ounces of silver are in the bar

Answer 1

7.5795 ounces.
Multiply the weight of the bar by the percentage of silver of the bar. Make sure to turn the percentage into decimal.
8.15-93/100-7.5795.
Round to two decimals if necessary, (which is 7.58).

Good luck.